Machine for upsetting tires



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I. N. WRIGHT;

MACHINE FOR UPSETTING TIRES.-

No. 357,947. Patented Feb.-1 87.

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(No Model.) 2 sheets-sheet 2.

I. N. WRIGHT. MACHINE FOR UPSETTING TIRES. $10,357,947. Patented Feb. 15, 1887.

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NITED STATES PATENT OFFICE.

ISAAC N. XVRIGHT, OF SARDINIA, INDIANA.

MACHINE FOR UPSETTING TIRES.

SPECIFICATION forming part of Letters Patent No. 357,947, dated February 15, 1887.

Application filed August 13, 1886. Serial No. 210,812.

To all whom it may concern.-

Be it known that I, Isaac N. WRIGHT, a citizen of the United States, and a resident of Sardinia, in the county of Decatur and State of Indiana, have invented certain new and useful Improvements in Machines for Upsetting Tires,&c.; and I do hereby declare that the following isafull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which Figure l is a front view of my improved upsetting-machine, showing it applied to a tire. Fig. 2 is a similar view showing it applied to a straight bar. Fig. 3 is a front view showing the machine used for upsetting a tire and showing the jaws forced together, and Fig. 4 is a vertical sectional view on line at w in all the former figures.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to machines for upsetting tires for vehicle-wheels or metallic bars; and it consists in the improved construe tion and combination of parts of such a machine, as hereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates the rigid plate of the machine, which plate is secured to a wall or post, B, or otherupright object, and the upper end of this plate has two laterally-projecting arms, 0 O, at its upper end, between which arms the upper end of a similar but movable plate, D, is pivoted. This plate has a lever, E, pivoted at its outer lower corner,tilting upward and'outward,and a pair of arms, F F, are pivoted at the outer lower corner of the rigid plate, and pass at both sides of the plate and have their outer ends pivoted to the lever near its lower end, so that the inner edges of the plates may be forced together by tilting the lever outward, and the pivoted plate may be tilted out by tilting the lever upward.

The plates are provided with upwardlyfacing brackets G G, having transverse cylindrical grooves H in their faces; and blocks I I, having serrated faces J, may fit upon the faces of these brackets, having cylindrical transverse ribs K upon their under sides,with

(No model.)

- which they may fit and rock upon the faces with the ribs in the grooves.

Two eccentric disks or blocks, LL, are pivoted upon the upper portions of the bracketplatcs, and are formed with serrated eccentric edges M, and these blocks have abutting blocks N upon the bracket-plates, which may bear against the upper sides of the eccentric blocks when tilted upward, the said blocks or stops limiting the upward play of the eccentries.

Two arms, 0 O, are pivoted with their lower ends to the inner faces of the eccentrics, and have their upper ends pivoted to the ends of a bar, P, which is pivoted at its middle upon a screw-bolt, Q, inserted into a lever, B, pivoted at its inner end upon the upper end of the rigid plate.

An upwardly-projecting spring-stop, S, is secured upon the upper end of the pivoted plate, and the upper end of this spring may prevent the lever from being tilted down after it has been raised.

A foot, T, having a convex under side, is provided with an upwardly-projecting longitudinally-slotted arm, U, having a series of serrations, V, having their shoulders facing upward upon its outer face, and slides with this slot adj ustably upon the bolt of the lever, and a perforated lip, IV, projects from the bracket-plate upon the rigid plate up through this slot, having the slotted arm sliding upon it.

A pawl, X, bent to form an elbow, is formed with a slot, Y, at the said elbow, into which slot the perforated lip projects, and the pawl is pivoted upon a pin, Z, passing through the sides of the slot and through the perforated lip, engaging the serrations with its downwardly-projecting arm.

The upwardly and outwardly projecting arm A of the bent pawl has an arm, B, pivoted to its end, and the upper end of this arm is pivoted to the lower end of a longitudinallyslotted bar, G, which slides adjustably upon the screw-bolt outside of the pivoted lever'or bar P.

It will now be seen that when the tire or bar to be upset is placed to rest upon the serrated blocks, the lever upon the movable plate having been tilted upward and the blocks having been placed upon the brackets, wedge-shaped ICO or concave blocks for a tire and straight blocks for a flat bar, the upper lever may be tilted down after the spring-stop has been pushed back, and the lever being tilted down will force the pivoted bar, with its two eccentricoperating arms, down, forcing the eccentrics against the upper side of the tire or bar, clamping it firmly.

The slotted arm of the foot has previously been adjusted to force the foot down, so as to just bear against .the tire or bar, and the pawloperating slotted bar has also been adjusted so as to cause the pawl to engage the serrations upon the slotted arm, so as to hold the foot down, and the lever at the side of the pivoted plate may now be tilted out, forcing the pivoted plate toward the rigid plate and upsetting the tire or bar, which is held firmly clamped between the eccentrics and the serrated blocks.

It will be seen that the foot bearing against the portion of the tire or bar being upset or compressed will prevent the bar or tire from buckling upward instead of being compressed, which will often happen in upsetting-machines not provided with means for bearing against the portion of the work being upset.

The bar having the eccentric-operatin g arms pivoted to it being pivoted at its middle upon the screw-bolt of the operating-lever, the eccentrics'will be tilted simultaneously; but, at the same time, if one portion of the tire or bar is thicker than the other the eccentric at that point will stop before the other eccentric, the bar simply tilting upon its pivotal bolt. The bent pawl will, by engaging the serrations upon the slotted arm of the foot, prevent the said foot from slipping with the slot upon the bolt, taking all strain off from the bolt tightened in the slot and bringing it upon the pawl and its rigid pivotal point.

Having thus described myinvention, I claim and desire to secure by Letters Patent of the United States- 1. In a tire-upsetting machine, the combination, with a rigid plate, A, movable plate D, arms 0 and F, and a lever, E, of brackets G, formed with serrated upper faces, serrated eccentric disks L, and means, substantially as described, for operating said disks, as specitied.

2. In a tire-upsetting machine, the combination, with a rigid plate, A, movable plate D, arms 0 and F, and lever E, of brackets G, each formed with a transverse cylindrical groove in its upper face, serrated blocks, each provided with a transverse cylindrical rib upon its back adapted to fit into said grooves, serrated eccentric disks L, and means, substantially as described, for operating said disks, as shown and described.

3. In a tire-upsetting machine, the combination, with a rigid plate, A, movable plate D, arms 0 and I lever E, and brackets G, of serrated eccentric disks L, arms O, connected to said disks, bar P, to which said arms are pivoted, and lever B, substantially as and for the purpose set forth.

4. In a tire-upsetting machine, the combination, with the rigid plate A, movable plate D, arms C and F, and lever E, of bracketplates secured to the rigid and movable plates, brackets G, eccentric disks L, secured to said bracket-plates, the foot T, provided with a slotted arm adapted to slide upon the lip NV, and means, substantially as described, for operating said foot and disks,for the purpose set forth.

5. In the within-described tire-upsetting machine, the combination, with the brackets G, disks L, arms 0, bar P, foot T, and lever B, of the pawl X, arm 13, slotted bar 0, and the screw bolt Q, substantially as and for. the purpose set forth.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

ISAAC N. WRIGHT.

\Vitnesses:

JAMES S. HARPER, LEVI l3. HILL. 

